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. H. W; WRIGHT.

LAMP. No. 271,181. Patented Jan.23,1883.

N. PErERS. Phalolilhugraphnr. wnhin m 'll UNITED STATES PATENT Oriana.

HOWELL N. WRIGHT, OF NEW YORK, ASSIGNOR TO ANNA J. BROWNELL OF BROOKLYN, N. Y.

LAM P.

SPECIFICATION forming part of Letters Patent No. 271,181, dated January 23, 1883.

Application filed July 11, 1882. (No model.) I l T 0 all whom 'tt may concern Be it known that I, HOWELL W. WRIGHT, of New York, in the county of New York and State of New York, have invented a certain new and useful Improvement in Lamps, of which the following is a specification.

The object of my improvement is to provide a simple means for fastening together the parts of metal and glass or ceramic ware which are so commonly employed in the construction of lamps, especially those of the more ornate styles. Heretofore such parts have commonly been secured together by plaster-of-paris. This becomes saturated with oil or deteriorates from other causes and releases the parts. Moreover, much labor is involved in fastening the parts together by the use of this material. ln'rnany cases it is desirable to so fasten the parts that they may conveniently be detached and reattached, and to do so is impossible when they are fastened by plaster-ot paris.

My improvement consists in providing the glass or ceramic parts and the metal parts with corresponding rims havingtheir meeting surfaces made in the form of annular wedges, so that they may be fitted together andturned to clamp and securely fasten them.

In the accompanying drawings, Figurevl is a sectional side view of a lam p-stand embodying my improvement. Fig. 2 is a horizontal section, on a larger scale, taken through the body and collar of the same. Fig. 3 is an inverted plan of the collar. Fig. 4 is a plan of the body. Fig. 5 is an inverted plan of the body. Fig. 6 is a plan of thepedimentorbasepiece, and Fig. 7 is a vertical section of the upper part of a lamp-reservoir and a burner affixed thereto.

Similar letters of reference designate corresponding parts in" all the figures.

Adesignatesthebase'piece ofthelamp-stand. It is made of metal, preferably such a metal as Britannia metal, and has its exterior embellished in any desirable manner. At the topit is provided with a rim, a.

B designatesthe bodyof thelamp-stand. It is made of glass or of any suitable kind of ceramic ware, and is provided at the lower pulling or lifting one from the other. At the upper end the body has a rim, 0.

O designates a collar, which may be made of thesalne kind of metal as the base-piece of the lamp-stand. It is adapted to surround the rim 0 of the body and to lap over the up per edge thereof. The exterior of the rim 0 of the body and the interior of the rim of the collar are made in the form of annular wedges. When fitted together and turned they are securely clamped together. By turning them reversely they may be disengaged and separated.

By myimprovement I provide a very simple means for fastening together parts of meta-l and glass or ceramic ware used in the construction of lamp-stands. It saves the plaster-of-paris commonly employed to fasten such parts together, and also reduces the cost by saving the labor involved in the use of plaster-of-paris. After the parts are fastened together by my improvement they may be readily detached, even by persons having little or no mechanical skill. This is advantageous, because the parts may be cleaned more easily when separate. Moreover, the metal parts can be scoured vigorously without any danger of'damaging the parts made of glass or ceramic ware.

' Other parts of a lamp may be united in the same manner as the parts described.

Although I have only described my improvement in connection with a lamp-stand, it obviously may be used in a variety of articles of similar or analogous construction. In Fig. 7 I have shown a collar, 0, fitted to an oil-reservoir, and a lamp-burner, D, fitted to the said collar, according to my improvement. This attachment is especially advantageous for a lampburner, as it provides for attaching and detaching the same quickly and far more easily than when a screw-thread is employed. The collar 0 here shown may be stamped up in dies.

What I claim as my invention, and desire to secure by Letters Patent, is-

In a lamp-stand or other like article composed of a part or parts of metal and a part or parts of glass or ceramic ware, the combi- 1o nation of rims 0n the said parts, having their meeting surfaces made to form annular wedges, substantially as and for the purpose specified.

HOWELL W. WRIGHT.

Witnesses:

JAMES R. BOWEN, T. J. KEANE. 

